How does the kidney respond to vasoconstriction of the renal artery?

Question

Quizplus · Accepted Answer

Vasoconstriction of the renal artery leads to decreased blood flow to the kidney which is detected by the juxtaglomerular cells. These cells respond by releasing renin which leads to the activation of the renin-angiotensin-aldosterone system. The end result is the production of angiotensin II which causes vasoconstriction and aldosterone release. Angiotensin II also stimulates the release of aldosterone by the adrenal cortex and increases the production of erythropoietin.

How Does the Kidney Respond to Vasoconstriction of the Renal